Hook knife



FIG. 1 shows a front perspective view of a hook knife in the open position;

FIG. 2 shows a front perspective view of the hook knife in the closed position;

FIG. 3 shows a rear perspective view of the hook knife in the open position of FIG. 1;

FIG. 4 shows a rear perspective view of the hook knife in the closed position of FIG. 2;

FIG. 5 shows a top plan view of the hook knife in the open position of FIG. 1;

FIG. 6 shows a top plan view of the hook knife in the closed position of FIG. 2;

FIG. 7 shows a bottom plan view of the hook knife in the open position of FIG. 1;

FIG. 8 shows a bottom plan view of the hook knife in the closed position of FIG. 2;

FIG. 9 shows a rear elevation view of the hook knife in the open position of FIG. 1;

FIG. 10 shows a rear elevation view of the hook knife in the closed position of FIG. 2;

FIG. 11 shows a front elevation view of the hook knife in the open position of FIG. 1;

FIG. 12 shows a front elevation view of the hook knife in the closed position of FIG. 2;

FIG. 13 shows a left side elevation view of the hook knife in the open position of FIG. 1;

FIG. 14 shows a right side elevation view of the hook knife in the open position of FIG. 1;

FIG. 15 shows a left side elevation view of the hook knife in the closed position of FIG. 2; and,

FIG. 16 shows a right side elevation view of the hook knife in the closed position of FIG. 2. 

CLAIM The ornamental design for the hook knife, as shown and described. 